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Validation of Particle-Laden Large-Eddy Simulation Using HPC Systems

In: Sustained Simulation Performance 2017

Author

Listed:
  • Konstantin Fröhlich

    (RWTH Aachen University, Institute of Aerodynamics)

  • Lennart Schneiders

    (RWTH Aachen University, Institute of Aerodynamics)

  • Matthias Meinke

    (RWTH Aachen University, Institute of Aerodynamics)

  • Wolfgang Schröder

    (RWTH Aachen University, Institute of Aerodynamics
    RWTH Aachen University, Jülich Aachen Research Alliance - High Performance Computing)

Abstract

In this contribution, results of a direct particle-fluid simulation (DPFS) are compared with direct numerical simulations and large-eddy simulations (LES) using a popular Euler-Lagrange method (ELM). DPFS facilitates the computation of particulate turbulent flow with particle sizes on the order of the smallest flow scales, which requires advanced numerical methods and parallelization strategies accompanied by considerable computing resources. After recapitulating methods required for DPFS, a setup is proposed where DPFS is used as a benchmark for direct numerical simulations and LES. Therefore, a modified implicit LES scheme is proposed, which shows convincing statistics in comparison to a direct numerical simulation of a single phase flow. Preliminary results of particle-laden flow show good agreement of the LES and the DPFS findings. Further benchmark cases for an appreciable range of parameters are required to draw a rigorous conclusion of the accuracy of the ELM.

Suggested Citation

  • Konstantin Fröhlich & Lennart Schneiders & Matthias Meinke & Wolfgang Schröder, 2017. "Validation of Particle-Laden Large-Eddy Simulation Using HPC Systems," Springer Books, in: Michael M. Resch & Wolfgang Bez & Erich Focht & Michael Gienger & Hiroaki Kobayashi (ed.), Sustained Simulation Performance 2017, pages 137-149, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-66896-3_9
    DOI: 10.1007/978-3-319-66896-3_9
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